<template>
	<view class="goods-detail-container" v-if="goods_info.goods_name">
      <!-- 轮播图 -->
      <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
        <swiper-item v-for="(item,i) in goods_info.pics" :key="i" >
          <image :src="item.pics_big" @click="preview(i)" mode=""></image>
        </swiper-item>
      </swiper>
      <!-- 内容区域 -->
      <view class="goods-info-box">
        <!-- 价格    -->
        <view class="price">
          ￥{{goods_info.goods_price}}
        </view>
        <!-- 信息-名称 收藏 -->
        <view class="goods-info-body">
            <!-- 商品名称 -->
            <view class="goods-name">
              {{goods_info.goods_name}}
            </view>
            <!-- 收藏按钮 -->
            <view class="favi">
              <!-- icon 收藏 -->
              <uni-icons type="star" size="30" color="gray"></uni-icons>
              <text>收藏</text>
            </view>
        </view>
        <!-- 单独运费 -->
        <view class="yf">
            运费：免运费
        </view>
      </view>
      <!-- 详情图片 -->
      <rich-text :nodes="goods_info.goods_introduce"></rich-text>
      <!-- 获取底部导航 @click 左侧  -->
      <view class="goods-nav">
        <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick"/>
      </view>

	</view>
</template>

<script>
  import {mapState,mapMutations,mapGetters} from 'vuex'
	export default {
    // 监听total变化，赋值给角标
    watch:{
      total:{
        handler(newVal){
          const findRsult = this.options.find(x=>x.text === '购物车')
          if(findRsult){
            findRsult.info = newVal
          }
        },
        immediate:true
      },
      
    },
    
    // 导入使用数据
    computed:{
      ...mapState('m_cart',['cart']),
      ...mapGetters('m_cart',['total'])
    },
		data() {
			return {
				goods_info:{},
        // 底部导航配置
        options: [
          {
        	icon: 'shop',
        	text: '店铺',
        }, {
        	icon: 'cart',
        	text: '购物车',
        	info: 0
        }],
        // 按钮配置对象
        buttonGroup: [{
          text: '加入购物车',
          backgroundColor: '#ff0000',
          color: '#fff'
        },
        {
          text: '立即购买',
          backgroundColor: '#ffa200',
          color: '#fff'
        }
        ],
        // 
			};
		},
    // 页面加载调用
    onLoad(options) {
      // 获取id
      const goods_id = options.goods_id
      // 方法
      this.getGoodsDetail(goods_id)
    },
    // 方法
    methods:{
      ...mapMutations('m_cart',['addToCart']),
      // 获取商品详情
      async getGoodsDetail(goods_id){
        const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        if(res.meta.status !== 200) return uni.$showMsg()
        // 修改图片底部空隙
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block;" ').replace(/webp/g,'jpg')
        
        // console.log(res);
        this.goods_info = res.message
      },
      // 图片预览
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x => x.pics_big)
        })
      },
      // 左侧按钮
      onClick(e){
        // console.log(e);
        if(e.content.text === '购物车'){
          
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      // 右侧按钮
      buttonClick(e){
        // console.log(e);
         if(e.content.text === '加入购物车'){
           const goods = {
             goods_id: this.goods_info.goods_id, 
             goods_name: this.goods_info.goods_name, 
             goods_price: this.goods_info.goods_price, 
             goods_count: 1, 
             goods_small_logo: this.goods_info.goods_small_logo, 
             goods_state: true
           }
           // console.log(goods);
           this.addToCart(goods)
         }
      }
    },
    // 
  }
</script>

<style lang="scss">
  // 轮播图
  swiper{
    height: 750rpx;
    image{
      width: 100%;
      height: 100%;
    }
  }
  // 商品内容区域
  .goods-info-box{
    padding: 10px;
    padding-right: 0;
    // 价格
    .price{
      color: #c00000;
      font-size: 18px;
      margin: 10px 0;
    }
    // 信息
    .goods-info-body{
      display: flex;
      justify-content: space-between;
      .goods-name{
        font-size:13px ;
        padding-right: 10px;
      }
      .favi{
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        border-left: 1px solid #efefef;
        color: gray;
      }
    }
    // 运费
    .yf{
      margin: 10px 0;
      font-size: 12px;
      color: gray;
    }
  }
  // 导航最外层容器
  .goods-detail-container{
    padding-bottom: 50px;
  }
  // 底部导航
  .goods-nav{
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
  }
</style>
